limit vs pick out

limit is a noun but pick out is not a noun.

Word	Noun	Adjective	Verb	Adverb
limit	Yes	No	Yes	No
pick out	No	No	Yes	No

As verbs, pick out is a hypernym of limit; that is, pick out is a word with a broader meaning than limit:

Other hypernyms of limit include choose, select, take.

limit (noun)	pick out (noun)
the greatest possible degree of something
the boundary of a specific area
as far as something can go
the greatest amount of something that is possible or allowed
the mathematical value toward which a function goes as the independent variable approaches infinity
final or latest limiting point

limit (verb)	pick out (verb)
restrict or confine within limits	pick out, select, or choose from a number of alternatives
place limits on (extent or amount or access)	detect with the senses
decide upon or fix definitely